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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:32:43 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:32:43 +0000
commit6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch)
treea68f146d7fa01f0134297619fbe7e33db084e0aa /testing/web-platform/tests/css/css-ui/text-overflow-013.html
parentInitial commit. (diff)
downloadthunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz
thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>CSS Basic User Interface Test: ellipsis and baseline alignement</title>
+<link rel="author" title="Florian Rivoal" href="http://florian.rivoal.net/">
+<link rel="help" href="http://www.w3.org/TR/css3-ui/#ellipsing-details">
+<link rel="match" href="reference/text-overflow-013-ref.html">
+<meta name="flags" content="ahem">
+<meta name="assert" content="The ellipsis is be baseline aligned with the block, even if the thing it replaces isn't.">
+<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
+<style>
+.test {
+ overflow: hidden;
+ text-overflow: ellipsis;
+ white-space: pre;
+ font: 100px/1 Ahem;
+ color: green;
+
+ /* 2em width and starting with a space
+ because the handling of the ellipsis of the first character on the line is special,
+ and therefore we need to have the thing we want to test in non first position.
+ */
+ width: 2em;
+}
+.red {
+ position: absolute;
+ z-index: -1;
+ width: 100px;
+ height: 100px;
+ background: red;
+ margin-left: 100px; /* moving right to skip the first 100x100 space that starts each line */
+}
+span {
+ vertical-align: sub;
+ color: red;
+}
+</style>
+
+<p>Test passes if there are 3 filled green squares and <strong>no red</strong>.</p>
+<div class="red"></div>
+<div class=test> <span>xxxx<br><div class="red"></div> xxxx<br><div class="red"></div> xxxx</span> </div>
+<!--
+There are 3 lines in the test div to make sure that the middle one only contains text from the span, not directly from the block,
+guaranteeing that the ellipsis is taking its baseline from the block even when the block has no direct content on the line.
+
+The "red" divs for line 2 and 3 are descendants of the span so that they are placed based on their static position at the begining of each line.
+The alternative, which would be to place them (vertically) with explicit offsets would require knowing
+the precise height of the preceeding line boxes, which isn't reliable across UAs.
+-->